“Flashback” to 2023

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Black Turfgrass Ataenius Egg Laying (GDD 50)
through Sat, May. 6. 2023

 

GDD Total: 118 (Base 50) through Sat, May. 6, 2023

  

Sparta, MI

        

Jump back to 2024

5/3

5/4

5/5

5/6

5/7

5/8

5/9

5/10

5/11

5/12

5/13

5/14

5/15

Over

1400

Second Generation Egg Laying

1200

Hatch and Development

200

First Generation Egg Laying

150

Under

0

 

Generously Supported By:



Tabular Data

Daily GDD accumulation for various base temperature models in 2024 & 2023

2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 25° 34° 8 0 0 0 0
02-16 18° 27° 9 0 0 0 0
02-17 12° 26° 9 0 0 0 0
02-18 23° 31° 14 0 0 0 0
02-19 16° 38° 19 0 0 0 0
02-20 23° 48° 33 4 0 0 0
02-21 37° 59° 59 20 6 0 0
02-22 30° 55° 80 31 7 0 0
02-23 23° 40° 90 31 7 0 0
02-24 13° 30° 90 31 7 0 0
02-25 24° 46° 103 34 7 0 0
02-26 30° 58° 125 46 9 0 0
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 52° 72° 165 76 28 12 7
02-28 20° 58° 181 83 28 12 7
02-29 14° 34° 184 83 28 12 7
03-01 26° 49° 199 88 28 12 7
03-02 38° 53° 223 102 32 12 7
03-03 38° 66° 253 122 42 14 7
03-04 49° 67° 289 148 58 22 10
03-05 42° 58° 316 165 65 22 10
03-06 37° 54° 340 179 69 22 10
03-07 31° 47° 357 186 69 22 10
03-08 38° 44° 376 195 69 22 10
03-09 31° 41° 390 199 69 22 10
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 30° 37° 401 200 69 22 10
03-11 26° 57° 421 210 69 22 10
03-12 41° 66° 452 231 80 25 10
03-13 38° 68° 483 252 91 28 10
03-14 43° 55° 510 269 98 28 10
03-15 33° 47° 528 277 98 28 10
03-16 32° 51° 547 286 98 28 10
03-17 28° 37° 558 287 98 28 10
03-18 25° 32° 565 287 98 28 10
03-19 30° 43° 579 292 98 28 10
03-20 22° 33° 585 292 98 28 10
03-21 15° 34° 588 292 98 28 10
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 24° 31° 594 292 98 28 10
03-23 23° 35° 601 292 98 28 10
03-24 23° 37° 609 292 98 28 10
03-25 32° 64° 635 308 104 28 10
03-26 40° 59° 663 326 112 28 10
03-27 31° 37° 675 327 112 28 10
03-28 26° 40° 686 329 112 28 10
03-29 22° 50° 700 333 112 28 10
03-30 34° 41° 716 339 112 28 10
03-31 34° 44° 733 345 112 28 10
04-01 34° 50° 752 355 112 28 10
04-02 37° 43° 770 363 112 28 10
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 35° 42° 786 369 112 28 10
04-04 35° 44° 804 377 112 28 10
04-05 33° 50° 823 386 112 28 10
04-06 30° 58° 845 398 114 28 10
04-07 32° 58° 869 412 118 28 10
04-08 43° 68° 902 435 131 34 10
04-09 46° 64° 936 459 145 39 11
04-10 37° 67° 966 479 155 41 11
04-11 47° 54° 994 497 163 41 11
04-12 45° 55° 1022 515 171 41 11
04-13 39° 58° 1049 532 178 41 11
04-14 50° 76° 1090 563 199 54 18
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 44° 67° 1123 586 212 59 19
04-16 45° 66° 1156 609 225 65 19
04-17 53° 65° 1193 636 242 74 23
04-18 46° 52° 1221 654 250 74 23
04-19 41° 50° 1244 667 253 74 23
04-20 35° 43° 1261 674 253 74 23
04-21 32° 48° 1279 682 253 74 23
04-22 34° 62° 1305 698 259 74 23
04-23 47° 60° 1337 719 271 77 23
04-24 36° 54° 1360 732 274 77 23
04-25 29° 57° 1380 743 274 77 23
04-26 35° 64° 1408 760 282 77 23
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 52° 76° 1450 793 304 92 32
04-28 53° 72° 1490 823 324 104 39
04-29 51° 68° 1528 851 342 114 44
04-30 47° 62° 1560 873 354 118 44
05-01 50° 71° 1599 902 373 129 50
05-02 48° 76° 1639 932 393 141 57
05-03 56° 71° 1680 963 414 154 65
05-04 49° 77° 1722 994 436 167 73
05-05 52° 69° 1760 1023 454 178 79
05-06 48° 69° 1797 1050 471 187 83
05-07 49° 67° 1833 1076 487 195 86
05-08 50° 73° 1872 1105 506 206 92
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 51° 61° 1906 1129 520 212 93
05-10 44° 64° 1938 1151 532 216 93
05-11 46° 61° 1969 1172 543 219 93
05-12 41° 70° 2003 1196 557 225 93
05-13 53° 70° 2042 1225 576 236 100
05-14 49° 70° 2080 1253 594 246 104
05-15 49° 71° 2118 1281 612 256 109
05-16 50° 72° 2157 1310 631 267 115
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 37° 49° 21 11 1 0 0
02-16 21° 36° 28 11 1 0 0
02-17 13° 25° 28 11 1 0 0
02-18 19° 38° 34 11 1 0 0
02-19 34° 45° 52 19 1 0 0
02-20 26° 39° 62 19 1 0 0
02-21 26° 37° 72 19 1 0 0
02-22 25° 29° 77 19 1 0 0
02-23 25° 35° 84 19 1 0 0
02-24 15° 26° 84 19 1 0 0
02-25 17° 31° 86 19 1 0 0
02-26 19° 36° 92 19 1 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 15° 34° 95 19 1 0 0
02-28 29° 39° 107 21 1 0 0
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 29° 40° 120 24 1 0 0
03-02 29° 38° 131 25 1 0 0
03-03 28° 33° 139 25 1 0 0
03-04 28° 44° 153 29 1 0 0
03-05 32° 48° 171 37 1 0 0
03-06 33° 40° 186 42 1 0 0
03-07 30° 44° 201 47 1 0 0
03-08 23° 43° 211 47 1 0 0
03-09 31° 39° 225 50 1 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 29° 38° 236 52 1 0 0
03-11 27° 39° 247 53 1 0 0
03-12 25° 32° 254 53 1 0 0
03-13 21° 29° 257 53 1 0 0
03-14 18° 36° 262 53 1 0 0
03-15 17° 42° 270 53 1 0 0
03-16 37° 49° 291 64 2 0 0
03-17 30° 46° 307 70 2 0 0
03-18 15° 29° 307 70 2 0 0
03-19 16° 34° 310 70 2 0 0
03-20 30° 44° 325 75 2 0 0
03-21 32° 50° 344 84 2 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 37° 45° 363 93 2 0 0
03-23 34° 46° 381 101 2 0 0
03-24 31° 44° 396 106 2 0 0
03-25 31° 34° 407 107 2 0 0
03-26 25° 46° 420 110 2 0 0
03-27 32° 47° 438 117 2 0 0
03-28 26° 48° 452 122 2 0 0
03-29 25° 37° 461 122 2 0 0
03-30 17° 43° 469 122 2 0 0
03-31 39° 54° 494 137 6 0 0
04-01 31° 55° 515 148 7 0 0
04-02 24° 47° 528 151 7 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 43° 59° 557 170 16 1 0
04-04 42° 49° 581 183 20 1 0
04-05 42° 68° 614 206 33 6 0
04-06 32° 45° 630 213 33 6 0
04-07 28° 50° 647 220 33 6 0
04-08 34° 57° 671 234 36 6 0
04-09 34° 64° 698 251 44 6 0
04-10 44° 65° 731 274 56 10 0
04-11 52° 71° 770 303 75 21 6
04-12 57° 76° 814 337 100 38 18
04-13 56° 77° 859 372 125 55 30
04-14 49° 81° 903 405 148 70 40
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 57° 79° 949 442 174 88 53
04-16 40° 66° 980 463 185 91 53
04-17 33° 40° 994 467 185 91 53
04-18 30° 45° 1010 473 185 91 53
04-19 31° 50° 1029 481 185 91 53
04-20 40° 70° 1062 504 198 96 53
04-21 43° 59° 1091 523 207 97 53
04-22 35° 49° 1111 533 207 97 53
04-23 34° 41° 1126 539 207 97 53
04-24 33° 47° 1144 546 207 97 53
04-25 32° 49° 1162 555 207 97 53
04-26 30° 50° 1180 563 207 97 53
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 30° 63° 1205 578 212 97 53
04-28 40° 60° 1233 596 220 98 53
04-29 41° 62° 1263 615 230 99 53
04-30 40° 46° 1283 626 231 99 53
05-01 36° 41° 1300 632 231 99 53
05-02 36° 42° 1317 640 231 99 53
05-03 40° 54° 1342 655 236 99 53
05-04 37° 60° 1369 671 242 99 53
05-05 48° 71° 1407 699 260 109 58
05-06 51° 66° 1443 726 277 118 62
05-07 55° 74° 1486 759 300 133 72
05-08 51° 61° 1520 783 314 139 73
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 43° 73° 1556 809 330 147 76
05-10 44° 74° 1594 836 347 156 80
05-11 46° 80° 1635 867 368 169 88
05-12 53° 79° 1679 901 392 185 99
05-13 60° 73° 1723 936 417 202 111
05-14 51° 62° 1758 960 431 208 112
05-15 36° 71° 1790 982 443 212 112
05-16 43° 72° 1826 1008 459 220 115
05-17 39° 62° 1854 1027 468 221 115
05-18 39° 68° 1886 1049 480 224 115
05-19 53° 67° 1923 1076 497 234 120
05-20 47° 66° 1958 1100 511 240 121
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 43° 75° 1995 1127 528 249 125
05-22 47° 71° 2032 1154 545 258 129
05-23 50° 80° 2074 1187 568 273 139
05-24 50° 68° 2111 1214 585 282 143
05-25 42° 67° 2144 1236 597 286 143
05-26 35° 73° 2176 1259 610 290 143
05-27 44° 77° 2214 1287 628 301 148
05-28 49° 81° 2258 1320 651 316 159
05-29 52° 85° 2304 1357 678 335 172
05-30 58° 88° 2355 1398 709 357 190
05-31 65° 89° 2410 1443 744 384 212
06-01 63° 89° 2464 1487 778 411 233
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 65° 91° 2520 1533 814 438 256
06-03 63° 87° 2573 1576 847 463 276
06-04 58° 80° 2620 1613 874 482 290
06-05 55° 83° 2667 1650 901 502 304
06-06 59° 76° 2712 1685 926 519 316
06-07 47° 75° 2751 1714 945 530 322
06-08 47° 75° 2791 1743 964 541 328
06-09 48° 75° 2830 1773 984 553 335
06-10 52° 79° 2873 1806 1007 568 345
06-11 54° 67° 2912 1835 1026 578 351
06-12 51° 63° 2947 1860 1041 585 353
06-13 45° 66° 2980 1883 1054 591 353
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 49° 71° 3018 1911 1072 601 358
06-15 50° 65° 3054 1937 1088 609 361
06-16 54° 74° 3096 1969 1110 623 370
06-17 49° 80° 3138 2001 1132 637 379
06-18 50° 84° 3183 2036 1157 654 391
06-19 59° 85° 3233 2076 1187 676 408
06-20 59° 87° 3284 2117 1218 699 426
06-21 63° 88° 3338 2160 1251 724 447
06-22 62° 84° 3389 2202 1283 748 465
06-23 63° 81° 3439 2242 1313 770 482
06-24 63° 87° 3492 2285 1346 795 502
06-25 65° 80° 3543 2325 1376 817 519
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 61° 69° 3586 2359 1400 832 530
06-27 58° 75° 3630 2393 1424 849 541
06-28 51° 79° 3673 2426 1447 864 551
06-29 64° 84° 3725 2468 1479 888 570
06-30 62° 85° 3777 2509 1510 911 588
07-01 65° 80° 3827 2550 1541 934 606
07-02 67° 78° 3878 2591 1572 956 624
07-03 65° 84° 3930 2633 1604 981 643
07-04 60° 86° 3982 2675 1636 1004 662
07-05 68° 89° 4038 2721 1672 1033 685
07-06 67° 80° 4090 2762 1703 1056 703
07-07 55° 77° 4134 2797 1728 1072 715
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 61° 70° 4177 2830 1751 1088 725
07-09 57° 79° 4223 2866 1777 1106 738
07-10 57° 83° 4271 2904 1805 1126 753
07-11 62° 80° 4320 2943 1834 1147 769
07-12 56° 76° 4364 2977 1858 1163 780
07-13 57° 73° 4408 3010 1881 1178 791
07-14 59° 81° 4456 3048 1909 1198 806
07-15 67° 80° 4507 3090 1941 1222 824
07-16 62° 76° 4555 3127 1968 1241 838
07-17 57° 74° 4598 3161 1992 1257 849
07-18 56° 77° 4642 3195 2016 1273 860
07-19 56° 80° 4689 3231 2042 1291 873
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 61° 80° 4738 3270 2071 1312 889
07-21 60° 80° 4785 3308 2099 1332 904
07-22 57° 82° 4833 3346 2127 1352 919
07-23 60° 76° 4879 3381 2152 1369 932
07-24 60° 82° 4928 3420 2181 1390 948
07-25 60° 84° 4978 3461 2212 1412 965
07-26 65° 77° 5027 3500 2241 1434 981
07-27 67° 87° 5082 3545 2276 1461 1003
07-28 70° 89° 5140 3593 2314 1491 1028
07-29 68° 83° 5194 3637 2348 1516 1049
07-30 63° 78° 5242 3675 2376 1537 1064
07-31 55° 79° 5287 3710 2401 1554 1076
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 55° 79° 5333 3745 2426 1571 1088
08-02 64° 82° 5384 3786 2457 1594 1106
08-03 63° 84° 5435 3828 2489 1617 1125
08-04 64° 84° 5487 3870 2521 1641 1144
08-05 63° 79° 5535 3908 2549 1662 1159
08-06 60° 66° 5576 3939 2570 1675 1167
08-07 61° 78° 5624 3977 2598 1694 1182
08-08 58° 81° 5672 4014 2625 1714 1196
08-09 62° 82° 5721 4054 2655 1736 1213
08-10 63° 81° 5771 4094 2685 1758 1230
08-11 56° 80° 5817 4130 2711 1776 1243
08-12 65° 78° 5867 4169 2740 1797 1259
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 60° 77° 5913 4206 2767 1816 1273
08-14 61° 70° 5956 4239 2790 1831 1283
08-15 60° 76° 6003 4275 2816 1849 1296
08-16 52° 78° 6045 4308 2839 1864 1306
08-17 59° 73° 6089 4342 2863 1880 1317
08-18 54° 73° 6131 4373 2884 1893 1325
08-19 51° 76° 6172 4405 2906 1907 1334
08-20 65° 87° 6226 4449 2940 1933 1355
08-21 61° 79° 6274 4487 2968 1953 1370
08-22 62° 73° 6320 4522 2993 1970 1382
08-23 65° 88° 6375 4567 3028 1997 1404
08-24 73° 85° 6431 4614 3065 2026 1428
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 68° 77° 6482 4655 3096 2049 1446
08-26 63° 75° 6529 4692 3123 2068 1460
08-27 52° 73° 6570 4722 3143 2080 1467
08-28 49° 76° 6610 4753 3164 2093 1475
08-29 55° 74° 6653 4786 3187 2108 1485
08-30 55° 71° 6694 4817 3208 2120 1493
08-31 45° 72° 6731 4844 3225 2129 1497
09-01 48° 77° 6771 4874 3245 2142 1504
09-02 58° 77° 6817 4910 3271 2160 1517
09-03 65° 85° 6870 4953 3304 2185 1537
09-04 67° 86° 6924 4997 3338 2211 1558
09-05 72° 89° 6982 5045 3376 2241 1583
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 69° 80° 7035 5088 3409 2266 1603
09-07 60° 72° 7079 5122 3433 2282 1614
09-08 56° 68° 7119 5151 3452 2293 1621
09-09 48° 73° 7157 5180 3471 2304 1626
09-10 50° 73° 7197 5210 3491 2315 1633
09-11 56° 63° 7234 5237 3508 2325 1637
09-12 53° 67° 7272 5265 3526 2335 1642
09-13 49° 64° 7307 5289 3540 2341 1643
09-14 44° 69° 7341 5314 3555 2348 1645
09-15 46° 71° 7378 5340 3571 2356 1649
09-16 50° 72° 7417 5369 3590 2367 1654
09-17 55° 69° 7457 5399 3610 2379 1662
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 47° 66° 7491 5424 3625 2386 1663
09-19 43° 67° 7524 5447 3638 2391 1663
09-20 57° 77° 7569 5482 3663 2408 1675
09-21 57° 80° 7616 5519 3690 2426 1689
09-22 58° 80° 7663 5555 3716 2445 1703
09-23 56° 74° 7706 5588 3739 2460 1712
09-24 50° 73° 7745 5618 3759 2472 1719
09-25 54° 70° 7785 5648 3779 2484 1726
09-26 61° 71° 7830 5682 3803 2500 1738
09-27 59° 64° 7869 5712 3823 2512 1744
09-28 57° 65° 7908 5741 3842 2523 1750
09-29 54° 65° 7946 5769 3860 2532 1755
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 50° 77° 7987 5800 3881 2546 1763

 

Latest Updates

March 18th, 2024Timing crabgrass preemergence applications in spring

Don't miss this update from from Kevin Frank regarding timing of crabgrass preemergence herbicides.


 

February 12th, 2024Welcome to the 2024 GDD Tracking Season

2024 might be the year that if you blinked you missed winter. We've already experienced some very unseasonably warm weather in February with temperatures in the 60's. Temperatures are remaining relatively mild but I wouldn't be surprised if winter resurfaced yet as we move through the rest of February and March. GDDTracker starts counting on February 15. Spring is typically the time of year when GDDTracker receives the most attention for alerting turfgrass managers of optimal application timing windows for suppressing annual bluegrass seedheads and crabgrass preemergence applications. However, there are many models you may find helpful throughout the season including the early season DMI timer and Smith-Kerns dollar spot prediction model. To learn about all the available models, click on the "About" tab at the top of the screen. Thanks for your continued support and use of GDDTracker and best wishes for a fantastic 2024!
 

 

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